TY - JOUR AU - Catharine Garmany BT - Publications of the Astronomical Society of the Pacific DA - Jan-07-1994 DO - 10.1086/133338 PY - 1994 EP - 25 T2 - Publications of the Astronomical Society of the Pacific TI - OB associations: Massive stars in context UR - http://articles.adsabs.harvard.edu/full/1994PASP..106...25G VL - 106 SN - 0004-6280 ER -